As Woofgang indicates, there's no tax on gifts (either for the giver or the recipient).
If you die within 7 years of making a gift though, that gift (in whole or in part) can still form part of the value of your estate when calculating how much Inheritance Tax is due.
However:
(a) there won't be any Inheritance Tax to pay anyway if your estate is valued at less than £325,000 ; and
(b) if your husband was to pre-decease you, leaving everything to you, you'd also inherit his tax-free allowance for Inheritance Tax, meaning that there would be nothing to pay unless the value of your estate exceeded £650,000.